Hell yeah i'd be interested. Hard to say what a fair price would be so early on,
Although the concept is unrelated, it reminds me of a game called hidden folks, not sure why. That game has loads of levels with hundreds of things on screen and stuff, I think i paid about £10 for that, its now $13 on steam not sure which currency you use, so i'd say if you had enough "levels" or mechanics etc it could go for around 7 - 15 dollars / pounds / euros etc, but if you want to move to other projects you could just add more features and upload it somewhere for free with ads, or even to itch with donations enabled. Not sure!
I haven't released a game myself so I shouldn't be giving you advice :)